Version 2.6.1.1 is a BuddyPress maintenance release that fixes a problem introduced in 2.6.1. For Version 2.6.1.1, the database version (bp_db_version in wp_options) was 10469, and the Trac revision was r10930. Read the full ticket log here. Fixes Core: Fix class autoloader behaviour during new installations. Read more about changes introduced with class autoloading. (#7153)